Sjogren's Syndrome

• Research Site — Hartford, Connecticut, United States
• Research Site — Boston, Massachusetts, United States
• Research Site — Philadelphia, Pennsylvania, United States
• Research Site — Dallas, Texas, United States

• Duke University Medical Center — Durham, North Carolina, United States
• University of Pennsylvania — Philadelphia, Pennsylvania, United States

• Tania S A Fidelix — São Paulo, Brazil

• University of Iowa — Iowa City, Iowa, United States
• Battelle Centers for Public Health Research and Evaluation — Durham, North Carolina, United States
• NIEHS, Research Triangle Park — Research Triangle Park, North Carolina, United States

• National Institutes of Health Clinical Center, 9000 Rockville Pike — Bethesda, Maryland, United States

• Michigan Cornea Consultants, P.C. — Southfield, Michigan, United States

Not specified

• Flaum Eye Institute at the University of Rochester — Rochester, New York, United States

• GHSU Center for Oral Medicine — Augusta, Georgia, United States

• Centre for Contact Lens Research, University of Waterloo — Waterloo, Ontario, Canada